strunk



9w K N R T S D GRAIN BINDER.

Patented May 19, 1885.

W a M N. PETERS. Plwio-Likhcgnpher, Washington, D. C.

2 Sheets-Sheet 2.

(No Model.)

D. STRUNK,

GRAIN BINDER.

No. 318,321. Patented May 19, 1885.

7467211 85 06 w// M%. M

.Zhrenl N. PETERS, Halo-Wm Wallinglcn. D. l;

UNITED STATES PATENT OFFICE.

DANIEL STRUN K, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF TlVO-THIRDS TOMINNEAPOLIS HARVESTER WORKS, OF SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 318,321, dated May 19,1885.

Application filed January 14, 1884. (X0 model.)

To all whom it may concern:

Be it known that I, DANIEL STRUNK, a citizen of the United States, andresiding at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented a certain new and useful Improvement inGrain-Binders, which is fully set forth in the following specification,reference being had to the ac eompanying drawings, in which- Figure 1represents an outer side view of a knotter-mechanism frame with a partof the main shaft and the knotter-operating wheel of a grain-binderhaving my improvement applied; Fig. 2, an end elevation of the same onthe cam-wheel end of the mechanism, and Fig. 3 an elevation of the leverand dog detached which operate the cord-holder; Fig. 4,2111 inner sideview of the mechanism shown in Fig. 1; and Fig. 5, a section of thesame,

taken on the line a" a Fig. 1.

Myinvention relates to that class of grainbinders in which twine or cordisused for the binding material,and the improvements which I have madeare in the mechanism by which the cord-holder is operated,and means foroperating the cord-tucker.

I will proceed to describe in detail one way in which I have embodied myinvention in practical form, and will then point out definitely in theclaims the special improvements which I believe to be new and wish toprotect by Letters Patent.

I have shcwn in the drawings and shall de-' scribe only such parts of agrain-binder as are necessary to an understanding of the constructionand operation of my present improvements, and this requires only a fewof the main elements of the machine. It will be understood that in itsgeneral features of construction the machine may be of any ordinarytype.

In the drawings, A represents the main shaft of the binder, and B aknotter-lhechanism frame,which is mounted on the main shaft, anarrangement of this device which is common and well known. Theknotting-hook and other parts usually located here are carried on thisframe; but as they constitute no part of my present invention they arenot fully shown, and I shall not describe them except as required for mypresent improvements. At the back or outer side of the frame is a cordholder, 0, which is of the usual disk variety, the disk running at oneedge in a grooved clamping piece orkeeper, D, and being pro vided with aratchet-wheel, 0, either attached to it or to its shaft or made in onepiece therewith, as shown in Fig. 1 of the drawings. These parts arecommon and well known in construction and operation, and require nofurther description here.

I have devised special means for giving the intermittent movement to thedisk which is required to sieze and clamp the cord at the proper time. Alever, E, is pivoted near the 6 middle of its length to a suitablesupport on the outer side of the frame and at the lower corner thereofunder the knotter-actuating wheel F, which is fastened to the main shaftof the binder, as usual. On the periphery of the wheelIprovideacam-groove, f, in which is arranged the upper end of the leverE, as shown in Fig. 1 of the drawings, this end being preferablyprovided with an anti-friction roller, 0. The levenE is substantiallystraight, and to its outer end is pivoted a pawl or dog, G. Thearrangement of the lever and pawl is such that if the latter is extendedinward from its pivot horizontally it will be in position to engage atits free end with the ratchet of the cord-holding disk. A spring, H, isconnected to thelever and the pawl in such a way as to hold the latterin working position, but at the same time permit it to yield. This is a.well-known device, and may be of any con- 8 struction and arrangementadapted to the purpose.

In the drawings I have shown the spring attached at one end to a pin, a,on the lever, coiled at its central portion h arounda second 0 pin, 71,on the lever, and having its free end arranged to act against a pin, 9,on the pawl to hold the latter up in working position. The groove f onthe knotter-actuating wheel is straignt nearly all the way round, andthe 9 5 lever while in this part of the groove is held in the positionshown in full lines in Fig. 1 of the drawings, in which position thepawl is disengaged from the ratchet; but at one point of the groovethere is a bend or turn, [00 f, outward, and obviously when the wheelturns around so as to bring this portion of the groove into action onthe pawl-lever the latter will be vibrated so as to throw the pawlinward, causing it to engage with the ratchet, the bend being formed soas to give a throw to the lever and pawl which will move the ratchet onenotch. This bend in the cam groove is located so as to throw the leverand pawl at the time required to take the cord and clamp it in the usualoperation of the machine, which need not be described here, as it iswell known and understood. The bend in the cam-groove is short, and runsback into the straight portion of the groove, so that the lever and pawlwill be at once thrown back into the position first mentioned.

The machine is provided with the usual stripper, J, whichis pivoted tothe frame, and is bent at its lower end in the usual way to hold and.guide the cord and strip the loop from the k-notting-hook. This deviceis so well known and is so familiar in its construc tion and operationthat it does not require further description here. The upper end of thestripper is carried inward ,and,as usual,enters a cam-groove in theinner side of the wheel 13, by which the stripper is vibrated in theusual way. This construction is also old and well known. A cutter, j, isalso preferably attached to the stripper so asto be opcrated by themovement of thelatter.

It will be noticed that the work of throwing the lever E in itsoperative direction is accomplished by the projection f-, extendingoutward from the inner face of the groove f.

I prefer the groove described above, by which.

the lever is moved positively in both directions and no spring isrequired; but some other means might be employed to throw the lever inone direction or to hold it up against the cam. This groovemay be formedby making the outside portion separately in the form of a circular orannular plate, F, bent into the required form and then bolted to thewheel, as shown in Fig. 2 of the drawings.

In this case the opposite portion of the groove 7 is obtained byproviding a rim or flange on the outer face of the wheel of suitableform for the purpose. A flange of this general de scription is usuallyfound on the wheels in ordinary use, and myimprovement can therefore bereadily applied to machines in use, for to provide the cam-groove itwill be necessary only to cut this flange to the required form andattach to the wheel the bent plate described above. This, however, is amere matter of detail in construction, and the cam-groove may be made inany convenient way. A springstop, I, is arranged to engage with thediskratchet, as usual, to prevent any backward movement of the latter.The cord-tucker K, I mount upon the corner of the frame opposite to thepawl-lever E, pivoting it so that it may be vibrated by means of thebolt L, passing through the tubular arm 7.:. The upper end of thistubular arm has a bearing in a fork or project-ion, b, of the frame, andis prooperated positively by the same cam which actuates the mechanismfor operating the cord holder. By this improvement I simplify theconstruction of the mechanism very much.

The mechanism for operating the cord-hold er is also exceedingly simpleand cheap, and taken in connection with the arrangement for operatingthe cord-tucker my improvement simplifies the machine very materially.It

reduces the number of parts employed, on

ables me to make them comparatively light, and the weight of theknotter-mechanism frame and its attachments is reduced by my presentimprovement several pounds.

The mechanism is simple and not liable to get out of order, and there isa certainty of action obtained which is desirable in these machines. Theimportance of these improve ments is obvious when it is remembered thatthese machines are taken into the field and drawn about. Every step inthe direction of simplifying the mechanism and reducing its weightbecomes, therefore, of more than ordinary' importance, and this fact isappreciated by those having anything to do practically with themanufacture or operation of self-binding harvesters.

The precise construction and arrangement of these devices whichconstitute my improvement may be changed somewhat without changing theessential features of my invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a grain-binder, a knotter-actuating wheel provided with acam-groove on its inncr side and a cam-track on its periphery, incombination with a stripper constructed and arranged to be operated bythe first-named cam-groove, and the actuating mechanism of thecord-holder, constructed and arranged to be operated positively in bothdirections by the peripheral cam-track, substantially as and for thepurposes set forth.

2. In a grain-binder, an actuating-cam, in combination with acord-holder mechanism and cc zed-tucker, and intermediate mechanismwhereby both are adapted and arranged to be operated by the said singleactuating-cam, substantially as and for the purposes set forth.

3. The wheel F, provided with a camgroove, f, in combination with thecord-holder, the lever E, the pawl G, and the cord-tucker K, providedwith the crank-arm 7c, all ar- ICC or flange arranged on its periphery,in combination with the bent plate E, fastened to the I 5 outer side ofthe wheel,the pawl-lever E, which aetuates the oord-holder, and thecord-tucker K, all constructed and arranged to operate substantially asand for the purposes set forth.

In testimony whereof I have hereunto set my 20 hand in the presence oftwo witnesses.

DANIEL STRUNK.

itnesses:

W. O. CORLI-Es, A. M. BEST.

